Side-bearing-pressure equalizer.



v J. F. OCONNOR. SIDE BEARING PRESSURE EQUALIZER.

APPLICATION FILED NOV 30, 1914.

mwwm-a Patented Mar. 14, 1916.

INVENTOR.

' ATTORNEY E EN WITNESSES SIDE-BEARING -PRESS'URE EQUALIZ-ER.

Specification of Letters Patent.

Patented is, 1916,

Application filed November 30, 1914. Serial No. 874,692.

To all whom it may concern:

Be it known that 1, JOHN F. OCoNNoR, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful improvement in Side-Bearing- Pressure Equalizers, of which. the following is full, clear, concise, and exact description, reierence being had to the accompanying drawings, forming a part of this specification.

This invention relates to improvements occurred, are automatically operated by the weigh o the inelf to limit the maximum load to which the side bearing can be subjected. to a predetermined proportion o he total weight on one set of bolsters,

' until such time when proper adjustment or parts and clearance is again provided.

In the drawing forming a part of this specification, Figure 1 is a part end elevation, part vertical section of a body andv truolr bolster of a car showing my improve ments in connection therewith and Fig. 2 is a horizontal sectional View taken substantially on the line of Fig. 1.

In said drawing, denotes a body bolster and. 11 truck bolster, which are or may be of any suitable or well known form. The body bolster 10 has secured thereto on the under side at the center, a center hearing plate 12 which fits within a suitably shaped recess 13in the top face of the truck bolster center bearing plate i l. The latter is provided with 21v depending portion 15 which fits within a depending annular llange 16 formed preferably integrally with the top wall of the truck holster 11. swivelly connecting the parts and extending through perforations in the body bolster 10,

A king pin 17 is employed,

plate 12 and plate 14. On each side of the king pin, the body bolster 10 is provided with an integral depending side bearing member 18 and the truck bolster is provided with an integral perforated boss 19 in which is slidably mounted a truck bolster side bearing member 20, the latter being in the form of an enlarged pin having a head 21 which is engaged by the under face of the depending members 18. The side walls 21 of the truck bolster 11, on their inner sides, are each provided with a pair of inwardly extending, integral perforated bosses 22, which are located intermediate the center of the truck bolsterand the side bearings. These bosses 22 are arranged in pairs, as clearly indicated in 2 and are adapted to receive therethrough heavy pins 23., the latter beingheaded at one end and held from accidental displacement by means of cotters 2e. Pivotally mounted on each of the pins 23, is a lever 25 of the first class, said lever having an outwardly extending" arm 26 which engages the lower end of a member 20. On the opposite side of this pivot, the lever 25 is provided with a pair of inwardly extending, spaced lever arms 27-27 which engage the under side of the depending hub 15 of the center bear-- ing plate 14.

As clearly appear from Fig. 2, the levers 25 are duplicates of each other to thereby facilitate and cheapen the manufacture. At its lower ends, the depending portion 15 is provided with an annular roove 28 adapted to receive a collar formed by two semi-annu- .lar members 2929 held together by bolts 30 passed through flanges 3131 -formed on said members 29. The side walls 21 of the truck bolster are cut away or recessed, as indicated at 32, to facilitate the application .or removal of the collar above described.

The operation of the device is as follows: Upon,pressure being applied to either of the movable side bearing members 20, the load is transmitted to the lever 25 and should this pressure equal or exceed the pre determined proportion of total, there will result a movement of the lever and a lifting of the center plate 14: relative to the truck bolster. In actual practice, the relative lengths of the arms 26 and 27 01"- the levers will be designed to suit requirements of the particular equipment. If the pressure on the side hearing be excessive, as would be due to oscillation of the car becly' when moved around a curx'e under too high a speecl, the

temporary load is taken directly onvthe, end. of the bolster, the side beaim fian e coi'nine" in Contact W1tl1 the top OI collar 1:) on mic bolster. v v

. llthougli I have herein shown and (lescribecl one form of my invention, the samei'-: merely illustrative and I contemplate ell elianges zinclniodifications that fall Within the scope 'the claimseppendefi hereto.

I claim? I I 1. The combinntioh "with a lEO'illY bolster and :1 truck bolster, of sliclable side beayieg ii'iembers l wanted in the truelg b0lser,.and movable means operaed upon .clowriwarcl movemeneof said members to elevaitethe body bolster at the center.

.2. In a device of the clmracter desegibed the combination with a, body bolstei and i ruck bolster pivotally connected, of vertically slidable side'bearing members mounted lll tl'lq t 'uck bolls-tag, and pivotal.ly'- rnounte(l levers operated by said side bearing mem-- sure is applied co said membere.

3. In a railway .02.;31the combination with bersjto elevete the bodylbfils'terwhen pr e- 1g a center beeri mounted therenemerl cenier u euntecl sicle beer on me truck bolster, and. preesure tmnemiefiing means between. *ehe moving and the center SETS in lziee sicle beerin 'members mounted on said truck belster and movable relatively therein, means sepereie side eeariaig i'nemoere, fez fiensmieting clown- Ward pressure on said members 20 an up Ward pressure against the under side 'he center bearing plate of the truck eels-ten JGHN F. O OGEN E Wi'tnesees:

CARRIE G. RANZ, LUCILLE Hzeeme.

a center beefing e he body bole eli sale means;

mounted. witli li 

